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Finding the Fourth Proportional to 570,256.36, 786,884.74 and 328,618.12

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Solution

The fourth proportional to 570,256.36, 786,884.74 and 328,618.12 is: 453,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,256.36 : 786,884.74 = 328,618.12 : x
  2. Step 2: Convert to fraction form
    570,256.36/786,884.74 = 328,618.12/x
  3. Step 3: Cross multiply
    570,256.36x = 786,884.74 × 328,618.12
  4. Step 4: Simplify right side
    570,256.36x = 258,584,583,915.49
  5. Step 5: Solve for x
    x = 258,584,583,915.49/570,256.36
  6. Step 6: Final answer
    x = 453,453.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.